Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/asm/sparc/SPARCFloatRegister.java @ 2177:3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
Summary: move symbols from permgen into C heap and reference count them
Reviewed-by: never, acorn, jmasa, stefank
author | coleenp |
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date | Thu, 27 Jan 2011 16:11:27 -0800 |
parents | c18cbe5936b8 |
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rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.asm.sparc; | |
26 | |
27 import sun.jvm.hotspot.asm.Register; | |
28 import sun.jvm.hotspot.utilities.Assert; | |
29 | |
30 public class SPARCFloatRegister extends SPARCRegister { | |
31 | |
32 public SPARCFloatRegister(int number) { | |
33 super(number); | |
34 } | |
35 | |
36 public int getNumber() { | |
37 return number; | |
38 } | |
39 | |
40 public static final int SINGLE_PRECISION = 1; | |
41 public static final int DOUBLE_PRECISION = 2; | |
42 public static final int QUAD_PRECISION = 3; | |
43 | |
44 public int getNumber(int width) { | |
45 switch (width) { | |
46 case SINGLE_PRECISION: | |
47 Assert.that(number < 32, "bad single-prec fp register"); | |
48 return number; | |
49 | |
50 case DOUBLE_PRECISION: | |
51 Assert.that(number < 64 && (number & 1) == 0, "bad double-prec fp register"); | |
52 return number & 0x1e | (number & 0x20) >> 5; | |
53 | |
54 case QUAD_PRECISION: | |
55 Assert.that(number < 64 && (number & 3) == 0, "bad quad-prec fp register"); | |
56 return number & 0x1c | (number & 0x20) >> 5; | |
57 } | |
58 throw new RuntimeException("Invalid floating point width supplied"); | |
59 } | |
60 | |
61 private static final int nofRegisters = 63; | |
62 public int getNumberOfRegisters() { | |
63 return nofRegisters; | |
64 } | |
65 | |
66 public boolean isFloat() { | |
67 return true; | |
68 } | |
69 | |
70 public boolean isFramePointer() { | |
71 return false; | |
72 } | |
73 | |
74 public boolean isStackPointer() { | |
75 return false; | |
76 } | |
77 | |
78 public boolean isV9Only() { | |
79 return number > 31; | |
80 } | |
81 | |
82 public boolean isValid() { | |
83 return number >= 0 && number < nofRegisters; | |
84 } | |
85 | |
86 public String toString() { | |
87 return SPARCFloatRegisters.getRegisterName(number); | |
88 } | |
89 | |
90 } |